That suggests that it was changes in gay and bisexual men's sexual behaviors, not the vaccine, that caused the outbreak to subside, researchers concluded.
Cameroon will be the first country to routinely give children a new malaria vaccine as the shots are rolled out in Africa.
The campaign due to start Monday was described by officials as a milestone in the decades-long effort to curb the mosquito-spread disease on the continent, which accounts for 95% of the world’s malaria deaths.
“This is the first definitive proof of sexual transmission of monkeypox in Africa,” Oyewale Tomori, a Nigerian virologist who sits on several WHO advisory groups, said. “The idea that this kind of transmission could not be happening here has now been debunked.”
The chief scientist from the World Health Organization is warning that Earth’s rising temperature will make dengue fever a massive threat within this decade.